Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details)

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Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities (Details) - shares
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Antidilutive securities (in shares) 3,558,471 1,184,546
Warrant [Member]    
Antidilutive securities (in shares) 1,460,199 1,007,687
Share-Based Payment Arrangement, Option [Member]    
Antidilutive securities (in shares) 285,928 176,859
Convertible Debt [Member]    
Antidilutive securities (in shares) 405,201 0
Series V Preferred Stock [Member]    
Antidilutive securities (in shares) 1,407,143 0